05/13/2011 09:56 am ET Updated Jul 13, 2011

'Gently Down the Stream': Robert De Niro, Diane Keaton, Amanda Seyfried In New Comedy

Here's a scenario: a cinephile, enthralled by the golden age of mob dramas in the 1970's and the legendary dramatic careers that spawned in their wake, falls into a coma in the early 90's. Awoken twenty years later and guided by a friend to a newfangled internet, a check of one Oscar winner's IMDB page would perhaps be the biggest modern day shock of all.

Since making his name in dramas such as "Mean Streets," "The Godfather: Part II," "Taxi Driver," and "Goodfellas," Robert De Niro has, while keeping his artistic integrity with many more serious and acclaimed films, has also carved out a particular and impressive niche in comedy. From "Analyze This" to the "Meet the Parents" franchise, he's proven he can get the laughs, and will work to do so again in a newly announced comedy.

De Niro will star alongside "The Godfather: Part II" cast mate Diane Keaton in "Gently Down The Stream," Variety reports. They'll play adoptive parents, since-divorced, who have to make nice for their daughter's -- Amanda Seyfried -- wedding. Why get along? Her biological parents will be showing up. Which is touching, but could be awkward.

It's a busy time for De Niro; he recently helped run the Tribeca Film Festival and co-starred with Bradley Cooper in "Limitless," and has a large number of films on the horizon. He just wrapped up, "Another Bullshit Night In Suck City," and finishing touches are being made on "New Year's Eve," "The Killer Elite" and "Red Lights." Right now, he's shooting cop film "Freelancers," a more conventional look for his illustrious career.

As for Seyfried, she's coming off of the supernatural, "Red Riding Hood," and just wrapped the sci-fi thriller "Now," with Justin Timberlake.

For more, click over to Variety.